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Division 2.1

United Kingdom

Original text. Later amendments are not shown.

For the purposes of this Directive:

  1. 2.1.1.

    ‘Electromagnetic compatibility’ means the ability of a vehicle or component(s) or separate technical unit(s) to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment.

  2. 2.1.2.

    ‘Electromagnetic disturbance’ means any electromagnetic phenomenon which may degrade the performance of a vehicle or component(s) or separate technical unit(s), or of any other device, unit of equipment or system operated in vicinity of a vehicle. An electromagnetic disturbance may be electromagnetic noise, an unwanted signal or a change in the propagation medium itself.

  3. 2.1.3.

    ‘Electromagnetic immunity’ means the ability of a vehicle or component(s) or separate technical unit(s) to operate without degradation of performance in the presence of (specified) electromagnetic disturbances which includes wanted radio frequency signals from radio transmitters or radiated in-band emissions of industrial-scientific-medical (ISM) apparatus, internal or external to the vehicle.

  4. 2.1.4.

    ‘Electromagnetic environment’ means the totality of electromagnetic phenomena existing at a given location.

  5. 2.1.5.

    ‘Broadband emission’ means an emission, which has a bandwidth greater than that of a particular measuring apparatus or receiver (International Special Committee on Radio Interference (CISPR) 25, 2nd edition).

  6. 2.1.6.

    ‘Narrowband emission’ means an emission which has a bandwidth less than that of a particular measuring apparatus or receiver (CISPR 25, 2nd edition).

  7. 2.1.7.

    ‘Electrical/electronic system’ means (an) electrical and/or electronic device(s) or set(s) of devices together with any associated electrical connections which form part of a vehicle but which are not intended to be type-approved separately from the vehicle.

  8. 2.1.8.

    ‘Electrical/electronic subassembly’ (ESA) means an electrical and/or electronic device or set(s) of devices intended to be part of a vehicle, together with any associated electrical connections and wiring, which performs one or more specialised functions. An ESA may be approved at the request of a manufacturer or his authorised representative as either a ‘component’ or a ‘separate technical unit (STU)’ (see Directive 70/156/EEC, Article 2).

  9. 2.1.9.

    ‘Vehicle type’ in relation to electromagnetic compatibility means vehicles which do not differ essentially in such respects as:

    1. 2.1.9.1.

      the overall size and shape of the engine compartment;

    2. 2.1.9.2.

      the general arrangement of the electrical and/or electronic components and the general wiring arrangement;

    3. 2.1.9.3.

      the primary material of which the body or shell (if applicable) of the vehicle is constructed (for example, a steel, aluminium or fibreglass body shell). The presence of panels of different material does not change the vehicle type provided the primary material of the body is unchanged. However, such variations must be notified.

  10. 2.1.10.

    An ‘ESA type’ in relation to electromagnetic compatibility means ESAs which do not differ in such essential respects as:

    1. 2.1.10.1.

      the function performed by the ESA;

    2. 2.1.10.2.

      the general arrangement of the electrical and/or electronic components, if applicable.

  11. 2.1.11.

    ‘Vehicle wiring harness’ means supply voltage, bus system (e.g. CAN), signal or active antenna cables, which are installed by the vehicle manufacturer.

  12. 2.1.12.

    Immunity-related functions are:

    1. (a)

      functions related to the direct control of the vehicle:

      • by degradation or change in engine, gear, brake, suspension, active steering, speed limitation devices, for example,

      • by affecting driver’s position, e.g. seat or steering wheel positioning,

      • by affecting driver’s visibility: e.g. dipped beam, windscreen wiper;

    2. (b)

      functions related to driver, passenger and other road-user protection:

      • e.g. airbag and safety restraint systems;

    3. (c)

      functions which, when disturbed, cause confusion to the driver or other road users:

      • optical disturbances: incorrect operation of e.g. direction indicators, stop lamps, end outline marker lamps, rear position lamp, light bars for emergency system, wrong information from warning indicators, lamps or displays related to functions in clauses (a) or (b) which might be observed in the direct view of the driver,

      • acoustical disturbances: incorrect operation of anti-theft alarm, horn, for example;

    4. (d)

      functions related to vehicle data bus functionality:

      • by blocking data transmission on vehicle data bus-systems, which are used to transmit data, required to ensure the correct functioning of other immunity-related functions;

    5. (e)

      functions which, when disturbed, affect vehicle statutory data: e.g. tachograph, odometer.